<!--
*Author：富行天下团队
 *
 *代码由框架生成,任何更改都可能导致被代码生成器覆盖
 *业务请在@/extension/appmanager/App_News.js此处编写
 -->

 <!-- 
   *接口数据存放days
   *1 按照规则反回日期
   *2 每个日期下自定义属性和对应数据
   *3 考虑日期和星期对应
  -->
<template>
    <div id='calendar'>
        <div class='month'>
            <ul>
                <!--点击会触发pickpre函数（每次点击都应请求接口拿到相应数据再渲染），重新刷新当前日期 @click(vue v-on:click缩写) -->
                <li class='year-month'>
                    <span class='arrow' @click='pickPre(currentYear,currentMonth)'>&lt;</span>
                    <span class='choose-year'>{{ currentYear }}年</span>
                    <span class='choose-month'>{{ currentMonth }}月</span>
                    <span class='arrow' @click='pickNext(currentYear,currentMonth)'>&gt;</span>
                </li>
            </ul>
        </div>
        <!-- 星期 -->
        <ul class='weekdays'>
            <li>周日</li>
            <li>周一</li>
            <li>周二</li>
            <li>周三</li>
            <li>周四</li>
            <li>周五</li>
            <li>周六</li>
        </ul>
        <!-- 日期 -->
        <ul class='days'>
            <!-- 核心 v-for循环 每一次循环用<li>标签创建一天 -->
            <li  v-for='(dayobject,i) in days' :key='i'>
                <!--本月-->
                <!--如果不是本月的日期  改变类名加红色-->
                <span v-if='dayobject.day.getMonth()+1 != currentMonth' class="m-day"></span>
                <!--如果是本月  还需要判断是不是这一天-->
                <span v-else>
                <!--今天  同年同月同日--> 
                    <span>{{dayobject.day.getMonth()+1}}-{{ dayobject.day.getDate()}}</span>
                    <input type="checkbox" name="" value="" />
                    <!--<div v-if='dayobject.day.getFullYear() <= new Date().getFullYear() && dayobject.day.getMonth() <= new Date().getMonth() && dayobject.day.getDate() <= new Date().getDate()'> 数据：12222</div>                            
                    <div v-else class='margin-t'>设置</div>--> 
                    <div  class='margin-t'>数据：12222</div>
                    <div  class='margin-t'>数据：44555</div>
                </span>
            </li>
        </ul>
    </div>
</template>
<script>
export default {
  data () {
    return {
      currentDay:'' ,
      currentMonth: '',
      currentYear: '',
      currentWeek: '',
      days: [], //存放数据
    }
  },
  created: function () {
    // 在vue初始化时调用
    this.initData(null)
  },
  methods: {
    initData: function (cur) {
      // var leftcount = 0 // 存放剩余数量
      var date
      if (cur) {
        date = new Date(cur)
      } else {
        var now = new Date()
        var d = new Date(this.formatDate(now.getFullYear(), now.getMonth(), 1))
        d.setDate(35)
        date = new Date(this.formatDate(d.getFullYear(), d.getMonth() + 1, 1))
      }
      this.currentDay = date.getDate()
      this.currentYear = date.getFullYear()
      this.currentMonth = date.getMonth() + 1
      this.currentWeek = date.getDay() // 1...6,0
      if (this.currentWeek === 0) {
        this.currentWeek = 7
      }
      var str = this.formatDate(
        this.currentYear,
        this.currentMonth,
        this.currentDay
      )
      this.days.length = 0
      // 今天是周日，放在第一行第7个位置，前面6个
      // 初始化本周
      for (var i = this.currentWeek; i >= 0; i--) {
        var d2 = new Date(str)
        d2.setDate(d2.getDate() - i)
        var dayobjectSelf = {} // 用一个对象包装Date对象  以便为以后预定功能添加属性
        dayobjectSelf.day = d2
        this.days.push(dayobjectSelf) // 将日期放入data 中的days数组 供页面渲染使用
      }

      // 其他周
      for (var j = 1; j <= 35 - this.currentWeek; j++) {
        var d3 = new Date(str)
        d3.setDate(d3.getDate() + j)
        var dayobjectOther = {}
        dayobjectOther.day = d3
        this.days.push(dayobjectOther)
      }
   
    },
    pickPre: function (year, month) {
      // setDate(0); 上月最后一天
      // setDate(-1); 上月倒数第二天
      // setDate(dx) 参数dx为 上月最后一天的前后dx天
      var d = new Date(this.formatDate(year, month, 1))
      d.setDate(0)
      this.initData(this.formatDate(d.getFullYear(), d.getMonth() + 1, 1))
    },
    pickNext: function (year, month) {
      var d = new Date(this.formatDate(year, month, 1))
      d.setDate(35)
      this.initData(this.formatDate(d.getFullYear(), d.getMonth() + 1, 1))
    },
    // 返回 类似 2021-01-01 格式的字符串
    formatDate: function (year, month, day) {
      var y = year
      var m = month
      if (m < 10) m = '0' + m
      var d = day
      if (d < 10) d = '0' + d
      return y + '-' + m + '-' + d
    }
  }
}
</script>
<style>
#calendar {
  font-size: 12px;
  width: 100%;
  margin: 0 auto;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.1),
    0 1px 5px 0 rgba(0, 0, 0, 0.12);
}
.month {
  width: 100%;
  color: #333333;
}
.month ul {
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: space-between;
  height: 35px;
}
.year-month {
  display: flex;
  align-items: center;
  justify-content: space-around;
  margin-top: 10px;
}
.choose-month {
  text-align: center;
  font-size: 12px;
}
.arrow {
  padding: 5px;
  color: #999999;
  text-align:center;
  border:1px solid #ccc;
}
 
.month ul li {
  font-size: 22px;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin:0 auto;
  margin-top:20px;
}
.weekdays {
  margin: 0;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  color: #999;
  justify-content: space-around;
}
.weekdays li {
  display: inline-block;
  width: 13.6%;
  text-align: center;
}
.days {
  padding: 10px;
  background: #ffffff;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
}
.days li {
  list-style-type: none;
  display: inline-block;
  width: 14.2%;
  text-align: center;
  padding-bottom: 4px;
  padding-top: 10px;
  font-size: 12px;
  color: #000;
  border:1px solid #ccc;
  height:150px;
  position:relative
}
.days li span  span{
  position:absolute;
  left:5px;
  top:5px;
  width:28px
}
.days li input{
  position:absolute;
  right:5px;
  top:5px;
  width:20px;
  height:20px;

}
.days li .active {
  padding: 6px 10px;
  border-radius: 50%;
  color:red

}
.days li .other-month {
  padding: 5px;
  color: gainsboro;
}
.m-day{
    color:red
}
.margin-t{
    margin-top:20px;
    color:blue;
    cursor: pointer;
}
</style>